Make sure your device is switched ON*.
Plug it into a power outlet** for at least 20 minutes (the Lid on top must be closed). We recommend a full recharge, which requires 75 minutes.
* Press the button once and see if the lights turn on. If not, press and hold the button again, for 4 seconds.
** Laptop USB ports may not have enough power to charge your device if it is completely discharged.